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The e+–e− Annihilation Line and the Cosmic X-Ray Background

Published online by Cambridge University Press:  04 August 2017

Demosthenes Kazanas  and
Richard A. Shafer
Demosthenes Kazanas
Affiliation:
NASA/Goddard Space Flight Center, Code 665, Greenbelt, MD. 20771 and University of Maryland
Richard A. Shafer
Affiliation:
NASA/Goddard Space Flight Center, Code 665, Greenbelt, MD. 20771 and University of Maryland

Abstract

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The possibility that the processes responsible for the Cosmic X-ray Background (CXB) would also produce an e−-e+ annihilation feature is examined. Under the assumption that these processes are thermal, the absence of a strong e−-e+ annihilation feature places constraints on the compactness (L/R ratio) of these sources. Observations favor sources of small compactness ratio.

Type
Research Article
Information
Symposium - International Astronomical Union , Volume 104: Early Evolution of the Universe and Its Present Structure , 1983 , pp. 19 - 22
Copyright
Copyright © Reidel 1983 

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